#include <stdio.h>

void* my_memmove(void *dest, void *src, size_t num)
{
	void *ret = dest;
	if(dest < src)
	{
		while(num--)
		{
			*((char*)dest) = *((char*)src);
			dest = (char*)dest + 1;
			src = (char*)src + 1;
		}
	}
	else
	{
		while(num--)
		{
			*((char*)dest + num)	= *((char*)src + num);
		} 
	}
	return ret;
}

int main()
{
	int arr1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
	my_memmove(arr1, arr1 + 2, 20);
	int i = 0;
	for(i = 0; i < 10; i++)
	{
		printf("%d ", arr1[i]);
	}

	return 0;
}


